Configuration Of Control Circuit - Toshiba MMK-AP0073HP1-E1 Service Manual

8. CONFIGURATION OF CONTROL CIRCUIT

8-1. Indoor Controller Block Diagram
8-1-1. Case of Main (Sub) Remote Controller Connected
Indoor unit
#1
U3
Central control
remote controller
(Option) *1
U4
Sensor display
Sensor
Louver
motor
Indoor
fan motor
Max. 8 units are connectable.
*1 In group connection, mount the central control
remote controller to group header unit.
*2 Connection of weekly timer to sub remote controller
is unavailable.
Main (Sub) master remote controller
(Up to 2 sets)
Display part
LCD
Display part
LED
Main P.C. board
(MCC-1510)
DC20V
communication circuit
P.C. board
DC5V
(MCC-5044)
LED
part
Outside output
Start/Alarm/Ready
Thermostat ON
COOL/HEAT/FAN
DC12V
Power
circuit
DC280V
Function setup
Key switch
CPU
DC5V
Power circuit
Remote controller
communication circuit
A B
Remote controller
communication circuit
Central control
CPU
Driver
Driver
Fan motor
control circuit
AC synchronous
signal input circuit
L N
L N
Power supply
1Ø 220 – 240V, 50Hz
1Ø 220V, 60Hz
149
FILE NO. SVM-16046
Weekly timer
LCD Display part
driver
CN2
Function setup
CPU
CN1
Key switch
Secondary battery
DC5V
* 2
Power circuit
A B
EEPROM
TA sensor
TC sensor
Same
as left
TCJ sensor
HA
Remote
controller
A/B setup
U1U2
BUS
Communication
L N
circuit
Power
supply
Outdoor
unit
U1 U2
U2
Outdoor unit
U1
LCD
A B
Same
as left
U1U2
L N
Power
supply
Outdoor
unit